Automobile radiator



H.JAFFE. I AUTOMOBILE RADIATOR.

APPLICATION FILED SEPT- I5, 1921.

2 SHEETSSHEET I.

Patented Dec. 12

a "nu-.1 ......1 un...

H. JAFFE.

AUTOMOBILE RADIATOR.

APPLICATION FILED SEPT-15.19.21.

1,438,310, Patented Dec. 12, 1922.

i -2 SHEETS-SHEET 2.

Patented Dec. 12, 1922.,

HARRY JAlFE, OF

male

CHICAGO, ILLINOIS.

AUTOMOBILE RADIATOR.

Application filed September To all whom it may concern:

Be it known that I, HARRY Janna, a citizen of the United States, and resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in an Automobile Radiator, of which the following is a specifica tion.

My invention relates to improvements in radiators for automobiles and has special reference to radiators of the kind in which the core is made up of strips of thin. sheet metal.

An object of my invention is to provide a radiator of the character named which shall be capable of being constructed at relatively low cost; which shall be so constructed that there shall be sufiicient interior expansibility allowed so that the radiator cannot be fractured or damaged by freezing and which shall be of substantially maxi-- mum efiiciency in the cooling of the water.

A further object of my invention is to provide a radiator core of such form, construction and assembly that it will be a relatively simple matter to remove a damaged part or section thereof and inserta new part within. the opening provided by the removal of the damaged part and without the necessity of separating or disassembling the partsof the radiator and even without the necessity of removing the radiator from its installed position on an automobile.

A further object of my invention is to provide a radiator core of such construction that a section within the core and extending from front to back can be readily re moved in making repairs and a new part or section inserted which fills the opening produced, the new part being capable of being tightly sealed into the core by merely soldering the joints at the front and rear faces only of the radiator.

The invention will be more readily under stood by reference to the accompanying drawings forming part of this specification and in which,

Fig. 1 is a front view of a radiator constructed in accordance with my invention;

Fig. 2 is an enlarged fragmentary front view of the radiator core;

Fig. 3 is a still more enlarged frag- 15.1921. Serial No. 500,919.

mentary vertical cross sectional view of the core on the line 33 of Fig. 4.;

Fig. 4 is a fragmentary top plan view of the radiator core;

Fig. 5 is a side elevational View of one vertical section of the core as seen on the plane 55 of Fig. 2;

Fig. 6 is a similar view as seen on the plane 6-6 of Fig. 2;

Fig. 7 shows a front view of a fragment of a radiator core prepared to receive a repair section;

Fig. 8 is a front view of a repair section;

Fig. 9 is a front view of the fragment of the radiator shown in Fig. 7, as it would appear when repaired, and, I

Fig. 10 is a fragmentary horizontal sec-- tion on the line 10l0 of Fig. 2.

In said drawings, 1 indicates the radiator core which arranged within a suitable radiator shell having an upper header 2, provided with filling opening 3, of the usual kind and-a lower header 4. The core 1 is arranged between the two headers and is provided with vertical water passages through which the water flows downwardly as it is cooled. The water passages alternate with suitable horizontal air passages, as is usual, through which the air flows horizontally to cool the water within the tubes.

The core 1 comprises a series of vertical water tubes 5. Each water tube 5 is composed of two similar side walls 6, made of sheet metal. The tubes extend vertically from the lower header 4, up to the upper header 2, and are suitably sealed or connected to the headers. Each of the side walls 6 of each tube is folded and crimped between its ends to provide outwardly eX- tending double thickness fins 7, alternating with similar fins 8, which are shorter than the fins 7. Each sheet or side wall 6 is of a width to extend from front to back of the radiator and the front and rear margins of the strips are formed inwardly, as shown at 9, so that the two margins of the two strips forming a single water tube are brought into contact. Then when the core is completed by soldering the water tubes 5 are closed from their lower ends to their upper ends. At the ends of the tubes the sheets are bent outwardly as at 10, forming flanges for contact with and sealing to the upper and lower headers in the usual manner when completing the radiator.

Between the .uiis 7 and each sheet is provided ""h oue or more out. dly rounded cot-3r ens ll. which dd to the interior capacity of the tube, to render the walls of the tube somewhat lding and to afford l ing surface. it the additional heat radi. front and rear mar ns of the tubes the corrugations disapy into the edge llan iges I, forming inclined end shoulders 13, again the foiwi'ard ones of which the air impi as it passes through the radiator between the water tubes.

Between the water tubes I arrange sh et tal spacers 1 which extend from the bottom to the to of the c re and with which the longer fins '4' contact at their adjacent edges. These spacers are perr-ianently joined to the edges of the fins 7 when the core is immersed in melted solder in the process of the manufacture of the core. he upper and lower edges of these spacers be received between the adjacent edges of the 10. as best shown in Fig. 3 and provide flat upper and lower surfaces or ends for contact with the upper and lower headers.

The formation of the radiator with the water tubes which are provided with alternate lonoer and shorter s and the spacer strips, 1 rides substantially square open- 15, extending from front to rear and provi 'ig cellular appearance to the rad iator which is particularly attractive.

To present uniform appearance within the openings 15, I orefe'rably cut openings 16 in the forward. edges the spacer strips 14L, the openings 11 ring a ertical width substantially equal to the transverse space between opposed of the shorter fins 8, providing. as best shown in Figs. 7, S and 9, a, radiator of uniform lines and openings.

-t will be understood that the spacer stgi . W 14 are continuous at their rear edges from top to bottom of the rad' .tor and b tween the openings 16 provided in their forward edges, and which openings 16 may obviously extend from the front face suit- .Ll i ices toward the rear. The tongues 18, of tne spacer strips extend clear to the front face of radiator Jetween the longer fins T.

In forming the walls 6 of the water tubes 5 in the production of the fins 7 and 8, I preferably so form the this that their upper and lower walls are close contact with each other, as best shown in 3, although such. formation of the fins is not absolutely essential to the other important features of the core.

The water tubes 5, being continuous from the top to the bottom of the core and being substantially straight water passages, the core lends itself efiectively to the feature of completely coating the inside and the outside of all of the parts of the core with solder and thus protecting the sheet metal of which the core is made from deterioration by corrosion or otherwise.

In making acore of the form described, 1 preferably first assemble the requisite number of walls 6 in proper associated arrangement to form the necessary number of water tubes to fill the space in the radiator frame preferably stopping the core at the side edges at the center plane of a tube at each side. I assemble the several walls 6 with the necessary number of alternate intermediate spacers l land then I tightly clamp the several parts together to hold them properly in assembled relation while completing the core by the soldering operation.

In soldering a core of the kind described I first immerse it in a suitable acid bath to cleanse the surface setting the core upright to permit the liquid to properly drain from the tubes 5, and then completely immerse the core in a bath of melted solder in such man her that the solder flows within all the tubes 5 and completely covers all exterior and interior surfaces. ll hen the core has become thoroug .ly heated and the solder has coated all interior and exterior surfaces I lift the core from the solder and set upright again to oermit the solder within the tubes 5 to n'operly drain out and leave the tubes open from top to bottom. l further place the core horizontally to permit all superfluous solder to drain out of the horizontal air passages.

Destruction of radiators by freezing of the water within the tubes results from the impossibility of the parts of the radiator yielding. in the slight degree which is necessary to accommodate the slightly increased volume of the contents when the water is changed to ice. lrly improved core is so constructed that should it occur that the water within the tubes 5 is frozen, the portions of the walls 6 which extend between the longer fins 7, can readily yield outwardly on account of the shorter fins 8 not contacting with any wall and this slight yieldability of these portions of the wall I find is sutlicient to provide the. necessary additional space required to ac coinmo the ice and without any destructir upon the'core.

Furthermore. the corrugations 11 which extend substantially the full horizontal width from front to back. of the water passages. provides additional yieldability for this purpose.

it frequently occurs in the use of radiators that a portion thereof is damaged by reason of the radiator being forced against some projection or article which presses into the face of the radiator causing the water tubes to leak and necessitating more or less extensive repairs.

As the water tubes in my radiator are completely individually sealed from top to bottom, the side walls thereof being continuous from top to bottom, I can readily remove a damaged portion of the radiator, as best illustrated in 7. If a portion of the radiator is damaged which would cause one or more water tubes to leak, 1 preferably proceed as follows;

I remove a section of the radiator, shown at 19, where the opening is shown as extending through from front to back of the radiator. The vertical dimension of the opening 19 is defined at its upper side by the upper halves 20, of a horizontal row of the longer fins 7, and likewise the lower wall of .theopening as defined by the lower walls 21,

of a horizontal row of the longer fins 7. The sides of the opening 19 are defined by the outer walls 22, of one of the watertubes 5, at each side.

It will now be clear that as shown in. 7 I have cut off the two middle water tubes 5, between the upper and lower walls of the opening and I have split the two water tubes 5, at the sides of the opening 19.

For completing the repair I provide a small section 23 of the core, of the same construction as the main body of the core and of dimensions to fit within the opening 19. For instance, in the section 28, shown in Fig. 8, there are two water tubes intermediate between the sides of the section. At each side of the section a half tube 24, is provided and at the top and bottom of the section continuous horizontal walls 25 are provided which are identical with the parts of the fins 7 removed at the top and bottom of the opening 19, and consequently this section 23 fits accurately within the opening 19.

I force the section 28 into the opening 19 until the forward and rear faces of the section correspond or lie in the forward and rear faces of the core and then I solder the joints 26 at the front and rear faces of the core which appear between the peripheries of the ends of the section-23 and the two faces of the core. Having completely soldered these two joints 26, the repair is complete for the reason that no water can escape from any of the water passages which have been cut or opened each passage in itself is complete and the opening into the core has been completely sealed. Furthermore, each water passage which has been cut is now complete from top to bottom and consequently provides its quotaof circulating cross section.

While it is true that at the top and bottom of the sections the intermediate surfaces between the repair section 23 and the core .are not completely joined, this is not detrimental for the reason that even if water should seep through between these surfaces, it could not escape from. the radiator.

Another feature of my invention resides in the facility with which a small leak or damage could be repaired even on the road by the insertion into the cells of the radiator of a mastic substance such as partly cured rubber, which most car owners now carry with them for repairing tires, or even with a small quantity of chewing gum, such repair being sufficient to stop any slight leak until it can be more thoroughly repaired by the removal of the damaged portion and the insertion of a new section, as has been described.

it. many modifications of my invention will readily suggest themselves to one skilled in the art, I do not limit my invention to the particular sequence of steps or to the specific details of construction herein described and claimed.

1 claim:

1. radiator for automobiles comprising top and bottom headers, a core arranged between and sealed to the headers, the core comprising vertically extending transverse thin water tubes made of sheet metal strips, the strips crimped between their ends to provide outwardly extending horizontal double thickness fins, alternate fins being longer than the others, sheet metal spacstrips arranged between the longer strips, the shorter fins projecting freely and the whole joined into a unit by soldering inside and out.

2. In a radiator of the kind described, a pair of water tubes, each'tube made of two strips of sheet metal formed for contact at their vertical edge portions, these, strips provided with integral outwardly projecting transverse fins uniformly spaced from top to bottom, the alternate fins being shorter than the others, a metal. spacer strip arranged between the two tubes and contacting with the longer fins, and the several parts adapted to be permanently joined by soldering.

3. In a radiator of the kind described, a plurality of vertically extending water tubes. each tube comprising side wallsof sheet metal, the side walls formed to contact -.t their forward and rear edge portions, the :wldfi walls also formed to present horizonal outwardlyextending transverse fins, all ernate tins being wider than the'others, pacer strips arranged between the water ubes extending from front to back and top to bottom and contacting with the free of wide fins and the whole unified by immersion in melted solder.

4:. A sheet metal tube for a radiator comprising two sheet metal strips extending longitudinally of the tube, the strips formed for contact at their longitudinal edges and spaced apart between their edges, each strip folded upon itself to form outwardly projecting transverse fins of two widths, one

am Pro-F) of the narrower fins arranged between each two of the wider fiiis and the said stri 3s being transversel}; corrugated between the fins, as and for the purpose specified.

5. In a radiator of the kind described, a plurality of thin vertical water tubes, each tube having outwardly projecting transverse integral fins on each side, the fins being of: two widths and the narrower fins arranged between the wider fins, afiat spacer strip arranged between adj aoent Water tubes, and bound between the longer fins, the longer fins oi the several tubes arranged in horizontal alineinent, the spacer strips cut away at their forward edges between the shorter fins so that the forward edges of the spacers present the same appearance as the fins.

' the 6. In a radiator of the kinddescribed, a plurality of thin vertical water tubes, each tube having outwardly projecting transverse integral fins on each side, the fins being of ti o widths and the narrower fins arranged between the wider fins, a fiat spacer strip arranged between adjacent 'water tubes and bound between the wider fins, wider fins of the several tubes arranged in horizontal alineinent, the spacer strips provided at their forward edges with dove-tail shaped openings between the shorter fins of a size so that said forward edges present the same appearance as the fins.

Signed at Chicago, 111., this 10th day of Sept. 1921. v

HARRY JAFFE. 

